ShortStack - Shortstack is a website that allows you to create viral online events for your social media followers or other online audience.
AWeber - AWeber is an Email marketing software that's easy to use. Send email newsletters & autoresponders and deliver top notch emails.
HubSpot Marketing Hub - HubSpot is a cloud-based inbound marketing software that allows businesses to transform the way that they market online.
Constant Contact - Constant Contact offers email marketing, social media marketing, online survey, event marketing, digital storefronts, and local deals tools.
Woobox - Woobox helps you easily create powerful contests, sweepstakes, coupons, and more to grow your fans...
MailChimp - MailChimp is the best way to design, send, and share email newsletters.